Why has the paint on my walls started to crack and peel off?

What is it?

Over time, the paint on your walls starts to crack and eventually flakes off in large chunks.

What are the possible causes?

  • Using a lower quality paint with poor adhesion and flexibility.
  • Over thinning and over spreading the paint.
  • Poor surface preparation before applying paint.
  • Painting wooden surfaces without primer.
  • Oil based paints harden and become brittle as time passes, making them prone to cracking.

How can I fix this problem?

  • Remove all loose and flaking paint with a scraper or wire brush before repainting. Also sand and feather the edges.
  • Always use a top quality primer and paint top coat.
  • If the flaking occurs over multiple layers, use a filler.
  • Prime bare wood surfaces before repainting.
  • In exterior situations, check if cracking goes down to the substrate. If it does not, remove flaking paint with a scraper or wire brush, sand to feather the edges, prime bare spots and repaint with a high quality exterior paint.
  • If cracking does go down to the substrate, scrape off all the paint. Sand, and use a heat gun if necessary. Repaint with a water-based paint system.
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